Dust-protector for traction-engines.



,962. PATENTED DEC. 31, 1907. S. HUGHES.

DUST PROTEGTOR FOR TRACTION ENGINES.

APPLICATION FILED MAR- 25. 1907.

2 SHEETS-SHEET 1.

No. 874,962. I PATENTED DEC.31.1907.

s. HUGHES.

DUST PROTECTOR FOR TRACTION ENGINES.

APPLICATION FILED MAR. 25, 1907.

2 sums-45.11231 2.

Witnesses. Inventor.

snrrnn %TATE% rarsnr SAMUEL HUGHES, OF LINDSAY, ONTARIO, CANADA.

A uus'r-rsorncroa FOR. rnaor'ronasnernns.

."b all whom it may concern:

Be it known that I, SAMUEL HUGHES, a subject of the King of Great Britain, residing at Lindsay, Victoria county, Province ofOntario, and Dominion of Canada, have invented certain new and useful Improvements in' a Dust-Protector for Traction-Engines and the Like, of which'th'e following is a specification. A 4

This invention'relates to improvements in dust protectors for traction engines and the like, as set forth\ in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially in the novel construction and arrangement of parts whereby a fan impels a current of air at a sufficient velocity to blanket certain moving parts of the machinery of the vehicle.

The objects of the invention are to prevent the inroads of the dust on the important moving parts of the machinery and the con sequent eating away of said parts, while in operation, and to furnish a dust protector in which the operation will be coincident with the movement of the traction engine.

In the drawings, Figure 1 is a perspective view of a traction en 'ine, showing the dust protector as part of the mechanism thereof. Fig. 2 is a perspective detail of the dust protector apart-from thevehicle: Fig. 3 is a rear elevation of-the machine having several parts removed to show the invention. Fig.

- 4 is a cross sectional view through one of the gear wheels on the main axle of the vehicle and the dust protector. I

Like letters of reference indicate corresponding parts in each figure. I

It is. well known in the operation of traction engines, articularly in prairie country that'the alkali dust will penetrateinto a casing through the smallest crack or crevice, and it. has been found impossible to protect the driving gear Wheels of a traction engine during its progress on dusty land, and further the dust storms so frequent in many parts fill up the gearwheels and the teeth thereof with this dust and. frequently a good gear wheel will be eaten away in the space of a day. It is therefore desirable to have some means of protecting such vital parts as the operating gear mechanism .during the operation of the tractionengine and at the.

same time to add as little mechanism to the Specification of Letters Patent. Application filed March 25.1907. Serial No. 364,4'Zi3.

Patented Dec. ea,

present machinery of such vehicles as-possible and also comparatively little weight, and it is with a view of accomplishing this purpose that this invention has to do. 7

Referring to the drawings, 1 are rotary fans of any suitable pattern and mounted on the brackets 2 projecting from the frame or the boiler shell at each side of the vehicle, the said fans having the intake pipes 3 capped by the screens 4, and extending upwardly from the fan'casings, and the outlets 5 from the lower end of said fan casings and extending rearwardlyl 6- is the shaft, on which said rotary fans are mounted, and turning in suitable bearings in the casingsof said fans and extending across the vehicle and serving also as a tie-rod to steady said fan casings.

7 are pulleys mounted on the ends of the shaft 6 projecting beyond the outer sides of the casings of the rotary fans 1.

the vehicle.

12 are pinions mounted on the shaft 11 and rotating therewith and 13 are gear wheels fixedly secured on the main axle 14 of the vehicle and co-acting with the pinions 12 thus completing the chain of gears from the suitable bearings supported by the frameof main driving shaft of the engine for the propulsion of said vehicle.

This construction is but briefly described herein as it is all part of a we'll known type of traction engine and only is concerned with this invention in so far as parts are protected thereby'and the power is supplied necessary for operation.

15 are the main drivin wheels of the vehicle fixedly mounted on t e main axle 14 and forming part of the running gear as custom ary in this class of vehicle.

16 are pipes or tubes secured to the exhaust openings 5 of-the fan casings and communicating therewith and extending rearwardly.

17 are reducing joints connecting the pipes 16 with the pipes 18, the latter being of smaller diameter than the pipes 16 and extending rearwardly and downwardly.

' 19. are pipes extendinglaterally and outwardly from the reducing joints 1'? and pref erably formlng part therewith and having at their outer ends, the downwardly extending and flaring mouth openings 20, and intermeeach side of said pinion and flaresufliciently to completely-cover the said area-of the gear wheels 13 in their discharge.

23 are elbow-joints connecting the pipes 18 to the pi cs 24 and directing the said pipes 24 outward? 25 are be l-shaped nozzles secured at the ends of the pipes 24 and directing the cur-' rent of air downwardly over the 111'1'18 of the wheels 15. I

It will thus be seen that there is a clear passage for the flow of air from the exhaust openings of the casings of the rotary fans 1 through to the mouth openings 20, 21 and 25.

The reduced pipes 18 form sufficient Ob". struction to the flow of the air coming from the fans through the pipes 16 todirect a certain percentage of sald air into the pipes 19 and out through the mouth openings 20 and 21, thus as long as the fan is in operation there will be a constant current of air at a good velocity passing through the pipes 16 and 19 and the mouth openings 20, 21, and the pipes 16, 18 and 24 and the nozzles 25.

26 are pulleys mounted on the main driving shaft 8 and here shown as forming flywheels, though it must be understood that the fly-wheel may be entirely apart from said pulleys.

27 are belts connecting the pulleys 26 with the pulleys 7, and 28 are deflectors arranged around the lower half of the ear wheel 13 and secured to the frame of tie vehicle by the brackets 29, the said brackets holding the deflectors 28 obli uely in relation to the face of said gear wheel.

On the rotation of the main drivlng shaft,-

the rota fans 1 will be set in operation, with the 'resu t that the air will be taken in through the intake pipes 3, which. project upwardly towards the front of the vehicle, and this air will be forced throu h the action of the fans into the pipes 16 am? on through the pipes 19 out of the mouth openings 20 and 21 and as the said mouth openings flare consi erably, as pointed out in the present description, a continuous blanket of swiftly moving air will pass down the sides of the pinions 12 and the gear wheels 13 and will be deflected by the deflectors 28, therefore any dust will be precluded from coming into contact with. said pinions and gear wheels. air in passing out of the mouth openings 20 The and 21 will flow on'at a considerable velocity through the reduced pipes 18 and on into the pipes 211 and out through the bell-shaped nozzles 25, blowing away and outwardly the dust picked'up by the main driving wheels 15 and formin the wake of said wheels.

It has alrea y been explained that the rotary fans are driven from the main driving shaft of the engine, and this is certainly the preferable manner of operating the dust protector mechanism, but it may in some ma chines be advisable to operate the fans in some other way, and this can be done without in any way departing from the spirit of my invention. Further the arrangement of pipes connected with the fans may be somewhat different and constructed to suit various motor machines, the salient feature being blanket-ing several parts of the machine with a current of air.

As stated the application of this dust protector to other forms of vehicles will re uire modification in the design, therefore it W1 1 be understood that I do not confine the use of the device to vehicles known as traction engines.

What I claim as my invention is: g

1. In a dust protector for traction en ines and the like, the combination with the ,od'y and the driving mechanism, of a rotary fan suitably incased and sup orted from said body and having a screene in-take pipe and suitable outlet, a pipe extending rearwardly from said outlet and terminating in a bellshapednozzle in proximity to a main drivin p from said pipe and communicating therewith and having flaring mouths extending downwardly therefrom and directin a flow of air over certain drivin parts, deflectors in connection with said driving parts and coacting with said blanket of air, and means for operating said fan, substantially as described.

2. In a dust protector for traction engines wheel, a branch pipe extendin and the like, the combination with the body,

the main driving wheels and the gear mech anism operating said wheels, of a rotary fan suitably incased and having a screened intake pipe and an outlet and supported from said body, pipes extending from said outlet rearwardly, pipes of smaller diameter connected to said pipes and terminating in out wardly extending lengths having bell-shaped nozzles in proximity to said main driving wheels, branch pipes extending from the joints connecting said larger and smaller pipes and having flaring mouths arranged to the outer and inner sides of said gear mechanism and directing a flow of air downwardly completely covering the gear wheels of said mechanism, deflectors arranged in proximity to said gear mechanism and coacting with the flow of air, and means for operating said fan, substantially as described.

3. In a dvicvaeof the class desc/i'i beciil in Sigfled at the city-0f Ottawa, in the county I comblijlatiomka, pofiver (hiven (1139,11 havilng a of Carleton this 13th day of March 1907 suita e in-ta e an out et an a. pipeeadv ing fromv the outlet opening of said fan and H 5 havin flaring mouth .openin s therein ar- Witnesses:

range 'apd blanketing'parts b the machine, WILLIAM T. CUFFEQUIN, substantmlly as descr1bed. CORNELIA BENNETT. 

